TEHRAN, June 8 (Xinhua) -- Head of Iran's election committee Kamran Daneshjoo said on Monday that Iran will see a record number of voters casting their ballots in the upcoming 10th presidential election slated for Friday.

"The election is expected to have a record-breaking turnout," Daneshjoo told reporters at a press conference.

The tenet of the election committee is ensuring maximum participation from the 46.2 million eligible voters, Daneshjoo said.

Some 45,713 polling boxes will be set up all over the country, he said, adding that polls will open at 8:00 a.m. local time (0330 GMT) on Friday until 06:00 p.m. (1330 GMT) which can be extended if needed.

"But the voting should end before 12 in the midnight," he added.

According to Daneshjoo, about 304 polling stations will be set up in 130 countries including the United States for Iranians abroad.

The results of voting is expected to be announced on Saturday, he said, adding that if none of the candidates gets more than halfof the valid votes, the election will enter a second round which will begin next Friday.

Four candidates of the election -- incumbent President Mahmoud Ahmadinejad, former Prime Minister Mir Hossein Mousavi, former Parliament Speaker Mehdi Karroubi and former Revolutionary Guards chief Mohsen Rezaei -- are racing for the presidency.

Ahmadinejad, who is now seeking for a second term in office, defeated former President Akbar Hashemi Rafsanjani in the second round of the 9th presidential election in 2005.

Officials reported a turnout of about 63 percent in the first round of balloting in 2005 election and about 48 percent in the second round.